Problems with the motor’s oil filling hole

This post was last edited by qhwangyz on 2016-11-18 at 15:00. Ahah, let me explain this sea friend to you! Regarding this: in production, some motors have oil filling holes while others do not. Is it feasible to modify those without oil filling holes so that they have such holes as well, for the sake of easier maintenance? What principles are considered in motor design? Some have oil filling holes while others do not. ”The issue is that not all motors can have oil filling holes added; it mainly depends on the size of the motor’s end cover. For motors with too small end covers, it’s not possible to add oil filling holes. Generally, for IEC-standard motors with a center height of 160 mm or more, it can be specified when placing an order, and the supplier can provide oil filling holes for the motor. Typically, motors with a low power rating of 7.5 KW or less use fully enclosed bearings, and generally do not require lubrication. When the motor makes abnormal noises or experiences excessive vibration, it can be replaced as appropriate. Regarding how to maintain motors that do not have oil filling holes during normal production maintenance: is it not possible to simply work on the bearings, or is it necessary to replace them directly? Should I still open the motor end cover to add oil? ”Generally, the level of maintenance should be determined based on the operating conditions of the motor on site. For motors with a power of 11 KW or more, it is possible to lubricate them by removing the motor’s end cover and applying grease again; however, it is important to use the same type of grease throughout, and it is best to remove any existing grease from inside the motor to avoid mixing different types of grease. However, in cases of excessive vibration or abnormal noises from the bearings, careful handling is required. The bearings can be inspected and cleaned by opening the end caps; by checking the bearing clearance, signs of wear on the raceways, and the condition of the bearing retainers, it is possible to determine whether replacement of the bearings is necessary. Additionally, the importance of the motor equipment can also be taken into consideration when deciding whether to replace the bearings. Regarding “is oiling of motors during production done for each motor strictly according to its operating time?” ”It is recommended to carry out maintenance in accordance with the fueling schedule specified on the nameplate; if necessary, the lubrication interval can be shortened based on the vibration conditions of the motor. But remember not to apply too much oil (use the amount specified on the nameplate); otherwise, the motor will generate more heat, which can even pose a threat to its safe operation in summer.

Whether there are oil filling holes or not, regular inspections and maintenance are necessary. The inspections mainly involve checking whether the motor vibrates or makes unusual noises; a metal rod is used to listen to the sound of the bearings in operation. Inspections should generally be carried out every 5 days, while maintenance is typically done every six months. The motor’s end cover needs to be opened to check whether the bearings are lacking oil or damaged

The answer is very comprehensive; excellent, thank you so much

The answer is very comprehensive. The main aspects of routine inspection for operating equipment include checking the sound, temperature, and vibration levels. If there is an abnormality, the oil should be changed or the bearings replaced promptly.

There are specified requirements regarding the operation and maintenance of motors. Generally, lubrication is required every 3,000 hours, with the amount of lubricant filling two-thirds of the bearing chamber. It is best to determine the exact amount by testing using the oiling gun available. For motors that do not have oiling holes, regular inspections are necessary; the need for major repairs should be determined based on the actual operating conditions of the motor. If there are significant changes in the sound emitted by the motor, it is advisable to replace the bearings promptly to avoid potential damage caused by misalignment

Regarding “is oiling of motors during production done for each motor strictly according to its operating time?” ”It is recommended to carry out maintenance in accordance with the fueling schedule specified on the nameplate; if necessary, the lubrication interval can be shortened based on the vibration conditions of the motor. But be sure not to apply too much oil (use the amount specified on the nameplate); otherwise, the motor will generate more heat, which may even pose a risk to its safe operation in summer